One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； September 24th
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Multiple-choice question: In polymerization production, a buffer is added to the polymerization system to maintain the pH value of the reactor within a neutral range, ensuring the stability of the dispersant and the polymerization system and resulting in PVC resin with a favorable particle size. Which of the following are suitable as buffers? ( ) A. Sodium hydroxide B. Ammonium bicarbonate C. Sodium bicarbonate D. Tricalcium phosphate Answer: A B C D
A、Sodium hydroxide B、Ammonium bicarbonate